SIDE SILL ASSEMBLY OF VEHICLE WITH IMPROVED STIFFNESS

• Main Author: SONG WON JUNG
• Format: Patent
• Language: English; Korean
• Published: 16.03.2023
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; MOTOR VEHICLES; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRAILERS; TRANSPORTING; VEHICLES IN GENERAL; WELDING; WORKING BY LASER BEAM

The present invention relates to a side sill assembly of a vehicle with improved stiffness, which can achieve a light weight, and protect a high-voltage battery inside from an impact in case of a collision on a side surface. According to the present invention, the side sill assembly of a vehicle with improved stiffness comprises: a side sill inner (10); a side sill outer (20); and a reinforcing unit (30) arranged between the side sill inner (10) and the side sill outer (20). The reinforcing unit (30) includes: an upper member (31) formed in a longitudinal direction of the vehicle; a lower member (33) formed in a longitudinal direction of the vehicle, and located apart from the upper member (31) on a lower side of the upper member (31); and a middle member (32) having an upper surface (32a) bonded with a bottom surface of the upper member (31) and a lower surface (32b) bonded with an upper surface of the lower member (33), which are formed alternatingly. 본 발명은 경량화를 달성하면서 측면 충돌시 내부에 탑재된 고전압 배터리를 충격으로부터 보호할 수 있도록 한 강성이 보강된 차량의 사이드실 어셈블리에 관한 것이다. 본 발명에 따른 강성이 보강된 차량의 사이드실 어셈블리는, 사이드실인너(10), 사이드실아우터(20) 및 상기 사이드실인너(10)와 상기 사이드실아우터(20) 사이에 구비되는 보강유닛(30)을 포함하는 차량의 사이드실 어셈블리에 있어서, 상기 보강유닛(30)은, 상기 차량의 길이방향을 따라 형성되는 상부멤버(31); 상기 차량의 길이방향을 따라 형성되고, 상기 상부멤버(31)의 하방에 상기 상부멤버(31)로부터 이격되게 위치하는 하부멤버(33); 및 상기 상부멤버(31)의 저면에 접합되는 상부면(32a)과, 상기 하부멤버(33)의 상부면에 접합되는 히부면(32b)이 교번하여 형성되는 중간멤버(32);를 포함하는 것을 특징으로 한다.